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研究生： 吳佳龍
Jia-long Wu
論文名稱： 可調式窄頻液晶濾波器
Tunable Narrow-bandwidth Liquid Crystal Spectral Filter
指導教授： 戴朝義
Chao-yi Tai
徐桂珠
Kuei-chu Hsu
口試委員:
學位類別： 碩士
Master
系所名稱： 理學院 - 光電科學與工程學系
Department of Optics and Photonics
畢業學年度： 100
語文別： 中文
論文頁數： 52
中文關鍵詞： 可調 、窄頻 、液晶 、濾波器
外文關鍵詞： tunable, narrow-bandwidth, liquid crystal, spectral filter
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    • 　　本論文主要目的在開發窄頻(<5nm)且於可見光範圍內(400~800nm)大範圍可調之光濾波器。Fabry-Perot濾波器主要優點在於當膜層反射率夠高時，能獲得較佳的半高寬(FWHM)；串接液晶波板組成的Lyot濾波器主要優點在於第一級穿透波長具有大的FSR。本文結合兩種濾波器之優點，以Fabry-Perot濾波器串接Lyot濾波器來達到大範圍可調窄頻光濾波器之目的。
    　　藉由薄膜光學理論與瓊斯矩陣(Jones matrix)運算分別模擬計算Fabry-Perot濾波器與Lyot濾波器的FWHM與FSR。Fabry-Perot濾波器要求FSR要大但需保持在可調範圍內，模擬結果為可行空間層厚度為2μm。Lyot濾波器作用為圈選出Fabry-Perot濾波器中的主穿透波長，須確保半高寬夠小，可行參數為4組液晶波板所組成Lyot濾波器，其液晶層厚度分別為5、10、20、40μm。將兩種濾波器模擬結果結合，可得到符合設計目的之濾波器。
    　　我們實際製作了鍍製鋁膜的Fabry-Perot濾波器，並驗證了光程和反射率對於濾波器的影響。另實際製作了Lyot濾波器，其實際量測結果與模擬結果相符合。

    In this thesis, we propose a filter that has narrow FWHM(<5nm) and large tunable range(400nm ~ 500nm). Because Fabry-Perot filter can achieve narrow resolution and Lyot filter has large FSR, we combine Fabry-Perot filter and Lyot filter to be a new filter that has narrow FWHM and large FSR.
    We use thin film theory and Jones matirx to calculate the spectral response. In simulation, we design 2μm cell gap for Fabry-Perot filter and 5μm, 10μm, 20μm, 40μm cell gap for 4-stage-Lyot filter. By using these parameters, we can get a filter which reaches the target.
    Finally, we manufacture Fabry-Perot filter that uses Al film and verify the theory. We also make 4-stage-Lyot filter that show an identical result with the simulation.

    中文提要 i Abstract ii 致謝 iii 目錄 iv 圖表目錄 vi 一、緒論 1 1-1　前言 1 1-2　研究動機及目的 2 1-3　文獻回顧 3 1-4　論文架構 4 二、實驗理論 5 2-1　極化光理論 5 2-1-1　極化光簡介 5 2-1-2　瓊斯運算 7 2-1-3　史托克向量(Stokes vector) 9 2-1-4　邦加球(Poincare sphere) 10 2-2　Fabry-Perot理論 11 2-3　液晶 17 三、濾波器元件組之原理與模擬設計 20 3-1　濾波器組之整體架構 20 3-2　濾波器組元件原理 21 3-2-1　液晶型Fabry-Perot濾波器 21 3-2-2　Lyot濾波器 23 3-3　濾波器組的模擬設計 27 3-3-1　液晶型Fabry-Perot濾波器 27 3-3-2　Lyot濾波器 31 3-3-3　可調液晶波板(3rd wave plate)消除第二級穿透波長設計 34 3-4　整體架構模擬結果 36 四、實驗數據與分析 37 4-1　偏振片 37 4-2　Fabry-Perot濾波器 38 4-3　Lyot濾波器與可調液晶波板 41 五、結論與未來展望 48 5-1　結論 48 5-2　未來展望 48 參考文獻 50

    1. 李正中，薄膜光學與鍍膜技術，六版，藝軒圖書出版社，2009。
    2. Amnon Yariv, Pochi Yeh, Optical Waves in Crystal, John Wiley & Sons, New York,1984.
    3. Pochi Yeh, Claire Gu, Optics of Liquid Crystal Displays, Second Edition, John Wiley & Sons, New York, 2010.
    4. D.-K. Yang, S.-T. Wu, Fundamentals of Liquid Crystal Devices, John Wiley & Sons, New York, 2006.
    5. Y. Suemura, A. Tajima, N. Henmi, H. Morimura, and H. Takahashi, “An Adaptive Wavelength Tunable Optical Filter Employing an Angle-Tuned Interference Filter and an Intelligent Digital Controller”, J. Lightwave Technol., vol. 14, no. 6, 1048-55, June 1996.
    6. J. Stone and L. W. Stulz, “Pigtailed high-finesse tunable fibre Fabry-Perot
    interferometers with large, medium and small free spectral ranges”, Electronics Letters, Vol.23, no. 15, 781-782, Jul. 1987.
    7. M. Miller and F. J. Janniello, “Fiber Fabry-Perot filter with passive temperature compensation and its application in a wavelength-division multiple-access computernetwork”, OFC91 Technical Digest, 45.
    8. T. Amano, F. Koyama, T. Hino, M. Arai, and A. Mastutani, “Design and Fabrication of GaAs-GaAlAs Micromachined Tunable Filter with Thermal Strain Control”, J. Lightwave Technology, Vol. 21, no. 3, pp. 596-601, 2003.
    9. Sneh, K. M. Johnson, and J.-Y. Liu, “High-speed wavelength tunable liquid crystal filter”, IEEE Photon. Technol. Lett., Vol. 7, no. 4, pp. 379-381, 1995.
    10. K. Hirabayashi, H. Tsuda, and T. Kurokawa, “Tunable wavelength selective liquid crystal filters for 600 channel FDM systems”, IEEE Photon. Technol. Lett., vol. 4, no. 6, pp.597-599, 1992.
    11. Z. Zheng, G. Yang, H. Li, and X. Liu, “Three-stage Fabry–Perot liquid crystal tunable filter with extended spectral range”, Optics Express, Vol. 19, Issue 3, pp. 2158-2164, 2011.
    12. Ofir Aharon and I. Abdulhalim, “Tunable optical filter having a large dynamic range”, Optics Letters, Vol. 34, Issue 14, pp. 2114-2116, 2009.
    13. Ofir Aharon and I. Abdulhalim, “Design of Wide Band Tunable Birefringent Filters with Liquid Crystals”, PIERS, Vol. 5, No 6, pp. 555-560, 2009.
    14. Guowei Yang, Zhenrong Zheng, Haifeng Li, and Xu Liu, “Method to reduce sidelobes of multistage Lyot filters”, Applied Optics, Vol. 49, Issue 8, pp. 1280-1287, 2010.
    15. Jun Li, Chien-Hui Wen, Sebastian Gauza, Ruibo Lu, and Shin-Tson Wu, “Refractive indices of liquid crystals for display applications”, J. Display Technology, Vol. 1, Issue 1, pp. 51-61, 2005.
    16. 曾耀騰，「雙波長影像式橢圓儀之建立」，國立中央大學，碩士論文，民國99年。
    17. 陳奕晉，「矽基板液晶式Fabry-Perot濾光片/光開關」，國立中央大學，碩士論文，民國92年。
    18. Bing Yu, “Development of Tunable Optical Filters for Interrogation of White-Light Interferometric Sensors”, Virginia Tech university, PhD,2005.
    19. Jeroen Beeckman, Tian Hui, Pieter J. M. Vanbrabant, Robert Zmijan, and Kristiaan Neyts, “Polarization Selective Wavelength Tunable Filter”, Molecular Crystals and Liquid Crystals, Vol. 502, pp. 19-28, 2009.
    20. Johan Floriot, Fabien Lemarchand, and Michel Lequime, “Tunable double-cavity solid-spaced bandpass filter”, Optics Express, Vol. 12, Issue 25, pp. 6289-6298 ,2004.
    21. Yong Kong, Guowei Yang, Xiujiang Huang, “Multiple-stage liquid crystal tuned filter”, Optik, Vol. 122, Issue 19, pp. 1723-1729,2011.

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